 I'm here with the spare heat shield and trust structure. It is an exact replica of what's flying in space. The top heat shield is eight feet in diameter and four and a half inches thick. You can see that the top surface has a white coating that was specially designed for solar probe to reflect energy. It's a lot like being in a white car in a hot day as opposed to a black car in a hot day. You'd much rather be in the white car. The whole heat shield is sitting on a titanium frame that connects to the spacecraft and the system keeps Parker solar probe at a cool 85 degrees as we approach the sun. Now I'm gonna show a little demo. Hey Jim. Hey Betsy. So here we've got a cutout of the heat shield. It's the same thing, four and a half inches thick, carbon carbon on either side. Carbon carbon is a lot like the graphite box that you find in your tennis racket or in your golf clubs, but it's just been super heated. The inside is a carbon foam. It's only about 3% dense. It's one of the reasons why it's so lightweight. Okay. Let's give this a try. Okay. This isn't gonna hurt, is it? I don't think so. Okay. I'm gonna get the front surface blowing red hot. It's not quite as hot as it's gonna be at the sun. We can't quite do that, but it's pretty hot. I can certainly even now start feeling the heat. Jim's gonna be able to touch the backside though with his hand. Ready for me to try? Yeah, let's do it. Let's do it. Wow, that's very cool. I don't feel any heat at all coming through. Nothing? Nothing. I certainly feel heat. I'm starting to get gray red on the front side here. Nothing here. And that is the heat shield technology that keeps Parker Solar Probe safe at the sun.